Ice-skate.



L. VON KUPPEN.

IGE SKATE.

APPLICATION FILED MAR. 29, 1912.

Patented Apr. 7, 1914;

mLuMIA mnoomru (10-. WASHINGTON. D. c.

WNITED TATES PATENT @FFIQE.

LOT'HAR VON KorPnN, or POT$IDAM, GERMANY.

ICE-SKATE.

To all whom it may concern:

Be it known that I, LOTHAR VON KoPPEN, capitalist, a citizen of the German Empire, residing at Potsdam, in the Kingdom of Prussia, Germany, have invented certain new and useful Improvements in Ice-Skates, of which the following is a specification.

The present invention relates to improvements in skates and similar sliding devices having a runner, the forward and rear portions of which are curved upwardly.

The improvements consist in constructing and forming the runner so that, first, its intermediate portion is in or parallel to the center plane of the foot plate, while the end portions of the said intermediate straightpart are curved out of this plane in opposite directions, the forward portion being curved outwardly and the rear portion inwardly, and that, second, the ice engaging surfaces of the forward end of the rear portion of the runner are made in the shape of oppositely warped or twisted surfaces. Each of the said ice engaging surfaces has, therefore, an appearance similar to that of a mold-board or turn-furrow of a plow, the arrangement being such that the deeper edge of the warped ice engaging surface is, in the forward portion of the runner, on the inside of the latter and in the rear portion of the runner on its outside. The ice engaging surface of the intermediate portion of the runner may have the usual hollow cross-sectional form.

The object of the improvements is to make the runner more appropriate for straight away skating and sliding in curves, as the oppositely curved or bent portions of the runner are not in position to contact with the ice at the same time as the central portion, and vice versa; to insure the oppositely bent or curved portions, owing to the deeper inner or respectively outer edge of the warped ice engaging surfaces of that portion, a sharper grip into the ice; and to give the foot of the skater a more secure stand or support.

In order that my invention may be more fully understood, I shall now proceed to describe the same in detail and for that purpose shall refer to the accompanying sheet of drawings, whereon I have illustrated, by way of example, a skate made in accordance with and embodying my invention.

Figure 1 is an external lateral elevation of a right foot skate; Figs. 2, 3 and 4C are cross Specification of Letters Patent.

Application filed March 29, 1912.

Patented Apr. Z, 1914.

Serial No. 687,159.

sections on the lines 2-2, 33 and 4l (Fig. 1) seen in the direction of the arrows. Fig. 5 is a top view or plan of the runner as it appears after the removal of the foot plate; and Fig. 6 is a bottom view of the skate shown by Fig. 1.

Similar letters refer to similar parts throughout the several views.

The runner A carrying the foot plate B is curved or turned up at the front and at the rear in the usual manner, and is provided with an enlarged foot or base flange C. The runner hasa straight intermediate portion a which is in, or parallel to, the center plane of the foot plate, a forward portion a and a rear portion a these two latter portions bein bodily bent out of the center plane of the foot plate or runner respectively in op posite directions, so that the forward portion a directs outwardly and the rear portion a inwardly with relation to the center line or plane of the skate (Figs. 5 and 6).

- The ice engaging surface of the base flange C of the runner A may be formed in well known manner, for example, provided with a hollow (Z (Fig. 3) extending throughout the length of the runner, but this hollow is only in the intermediate portion a of the runner in a normal position to the center plane of the latter; that is to say, a tangent through the vertex of the hollow cl will be at right angles to the said center plane, while in the forward and in the rear por tions (2 and a respectively, the said hollow is wound progressively toward the front and the rear in opposite directions, so that the tangents through the vertices of the hollows el and CF of the portions a and a will be progressively at more and more acute angles to the center plane; or, in other words, the hollow ice engaging surfaces (Z1 and (Z (Fig. 5) of the bent forward and rear portions a and a are made each in the form of a moldboard of a plow. The arrangement being tl1us,'that in the forward portion a the deeper edge of the ice engaging surface (Z is on the inside and in the rear portion the deeper edge of the ice engaging surface (2' is on the outside of the skate.

Having thus described my invention, what I claim is:

1. A skate having a runner, the forward and rear portions of which are turned upwardly and provided each with an ice engaging surface shaped in the form of a mold-board of a plow, the forward portion having the deeper edge of the ice engaging surface on the inside and the rear portion on the outside, the ice engaging surface of the intermediate portion of the runner being straight.

2. A skate having a runner, the forward and rear portions of which are turned upwardly, provided each with a plow-moldboard-shaped ice engaging surface, and bodily bent in opposite directions out of the center plane of the skate, the intermediate portion of the runner and its ice engaging surface being straight and parallel to the said center.

In testimony whereof I hereunto affix my 15 Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

